//////////////////////////////////////////////////////////////////////////////////
//                                                                              //
//  This file is part of the buola project (https://code.google.com/p/buola/).  //
//                                                                              //
//  Copyright(c) 2007-2012 Xavi Gratal                                          //
//  gratal AT gmail DOT com                                                     //
//                                                                              //
//  Buola is free software: you can redistribute it and/or modify               //
//  it under the terms of the GNU General Public License as published by        //
//  the Free Software Foundation, either version 3 of the License, or           //
//  (at your option) any later version.                                         //
//                                                                              //
//  Buola is distributed in the hope that it will be useful,                    //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of              //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               //
//  GNU General Public License for more details.                                //
//                                                                              //
//  You should have received a copy of the GNU General Public License           //
//  along with buola.  If not, see <http://www.gnu.org/licenses/>.              //
//                                                                              //
//////////////////////////////////////////////////////////////////////////////////

#include <buola/buola.h>

#include <buola/app/cmessagequeue.h>
#include <buola/utility/uevent.h>

namespace buola {

CMessageQueue::CMessageQueue(CEventLoop &pEventLoop)
    :   mTriggeredPending(0)
{
    pEventLoop.AddFunction(CEventLoop::PRIORITY_MESSAGEQUEUE,this);
}

CMessageQueue::~CMessageQueue()
{
}

void CMessageQueue::StoreTriggered(triggered_event *pEvent)
{
    lock_guard<mutex> lLock(mMutex);

    mTriggeredPool.push_back(pEvent);
    mTriggeredPending++;
}

bool CMessageQueue::OnLoopFunction()
{
    if(!mTriggeredPending) return true;

    mMutex.lock();

    while(mTriggeredPending)
    {
        for(int i=0;i<mTriggeredPool.size();i++)
        {
            triggered_event *lM=mTriggeredPool[i];
            if(!lM) continue;
            mTriggeredPending--;
            if(mTriggeredPending<0)
                fatal_error("mPending<0\n");
            mTriggeredPool[i]=nullptr;
            mMutex.unlock();
            lM->Run();
            delete lM;
            mMutex.lock();
        }
    }

    mTriggeredPool.clear();

    mMutex.unlock();

    return false;
}

CMessageQueue &get_main_message_queue()
{
    static CMessageQueue lQueue(get_main_event_loop());

    return lQueue;
}

/*namespace buola*/ }
